Studying supernova and air quality with the help of trees. Supernova are some of the most devastating events in the universe, but what is their connection to trees? By studying tree rings we can help piece together the final days of stars. Supernova can cause large spikes in radiation that can be detected in tree rings. Trees do a lot for us but they can also help us track air quality simply and cheaply. Magnets and pine needles can helps us understand air quality. Air quality monitoring can be a matter of running a magnet over some leaves.
References:
Lagrange Point Episode 535 - Trees growing faster during droughts
Episode 534 - Finding a rocky asteroid belt around another star
Episode 533 - Bacteria melting ice and changing the planet
Episode 532 - Bacteria reviving themselves when the time is right
Lagrange Point Episode 531 - Measuring the expansion of the universe
Episode 530 - Fully recyclable electronics
Episode 529 - Listening in on conversations inside your body
Episode 528 - How our senses pass information to our brains
Episode 527 - Concrete in space from blood, sweat, tears and chips
Episode 526 - Capturing biological process in action
Episode 525 - Life in a radiation exclusion zone and #2023MMM
Episode 524 - Bacteria’s sneaky 1-2 punch to get into your brain
Episode 523 - Sinking carbon out of seawater and carbon storage in wood
Episode 522 - Making hydrogen greenly from Seawater
Episode 521 - Galaxies at the Cosmic Dawn
Episode 520 - There and back again - tales from a wandering space probe
Episode 519 - Evolving beaks and wild chickens
Episode 518 - Aurora on Jupiter and on Earth
Episode 517 - Cute green balls of algae and a changing climate
Episode 517 - How our body senses and interacts with the world
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